3 of 4 people found the following review helpful
OK unless you don't want to use the analogue phone features,
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This review is from: AVM Fritz! Box Fon 7390 Wireless 4 Port VDSL/ADSL2+ Router DECT VoIP Phone Adaper (Accessory)
I brought the Fritz router to replace my previous wireless router but also my DECT phone system and also to use VOIP. However the analogue phone line option of the router has serious issues. I had all the issues documented on the internet. Bad hiss on the line, making the call unusable unless you double filter the line! however double filtering the line means the volume of the call is very low. Also I got phantom phone calls after midnight (also documented on the internet). Also the phone calls back immediately on ending a call with a phantom call (no one there). None of these issues I experienced with a standard DECT system on my landline. This is clearly a design fault with the router and is documented by plenty of forum postings on the internet.
The speed and coverage of the wireless router is good. However even with the settings set to be the most stable, I get sync lost at least once a day with the router.
I contacted support many times. They did not make good their promise to replace the router. I would NOT buy this make of router again.